Quick! Wake LO?? Shots today

LO had 6 mo vaccines today.. Took one 20 min, 35 min and now for 3rd nap is going on 1hr 15 min and its 4:10 pm.. She usually goes to bed at 6.. Any later and it messes her nightsleep up. I hate to wake her since she had shots and im sure her little body needs it but I want her to sleep tonight.. Should I just let her sleep??